Sheet-separating device for sheet-feeding machines.



No. 853,91o-f PATENTEE MAY 14, 19o?.

E. NEEN. E SHEET SEEAEATING DEVICE EOE SEEEEEEEDING MACHINES.

APPLIUATIONZTILED NOV..18, 1905. A

` E'sSETS-"SHETJL @geni/(07 NM2-53,910. 4PATEEVEED MAY 14,1907

E ETYDEN.

SHEET SEEAEATINGEEVIGE EOE SHEET EEE'DING MACHINES.l

APPLICATION I'ILBD NOV.18, 1905.

2 SHEETS-SHEET 2 UNIiiin sfin'rns earner naaien.

EMIL TYDEN', 0F HAS'TIINGS, MICHIGAN.I SHEET-SEPARATINGDEWGE Foe SHEET-Fanning Mael-unes.

speciantiqn of Letters Patent.

Patented May 'I1-4, 1 907.

Original application filed June 8, 1905, Serial No. 2 64,217.-l Divided'and this application llled November 18, 1905. f v Serial No. 288,051.

Toall .whom it may concern.-

Beit known that I, EMIL TYDEM, .a citizen coiiipanyin drawings, forming apart. thereof.

"I'his app ication is a division of vmy lappli-l cation No. 264,217, filed June 8, 1905.

vThe-purpose of the invention coveredby this divisional application is to-provide de` vices for separating from a pile individual sheets of metal, paper, card or other sheet material' for the purpose of feeding vsuch tion of aportion ofpa sheet-feeding mechanf.

sheets .to the machine -for l-ol'ierating upon ism`-cntaining the present invention, only so much of the machine being shown as necessary to illustrate the invention. Fig. 2f

is a rearside elevation of the same.' Fig. 3

is a section at the line 'Ii-3 on Fig. 1. Fig.

,r 4 is a detail section at the line 4-4 onFigl 3 upon an enlarged scale.

x 'lhe ma chine as shown in the drawings comprises a "frame, upon the lower part of which there maybe mounted mechanism for supporting1 and advancingthe pile of sheets from whic the to sheets are to be detached for feeding onwar to mechanism which is to operate upon such sheets individually.

. The parts of the machine for advancing the 1 pile and bringi? the top sheets into reach of the -separatin as unavoidab e iiishowingv such lseparating devices and need not beparticularly described, but forunderstanding of s o much description is iven.

Upon the ame 1, there is mounted 1a for advancing the pile upwardly to keep its top within reach ofthe separating devices chine shown,l the thus lladvanced` up` for Atakingoif the top' sheets. In 'the rmtject matter of my vices are shown only so far lwardly between guidevposts, 5, 5 and 6, and on these guide posts there are mounted dogs,

7, having noses, 7 a, at their upper 4ends which ceive another pile. The details'of the mechl anism for eecting these movements is not herein claimed nor fulll shown and need not l be described, 'the same eing part of the suh- 264,217. At opposite sides of the path of the platen and ofthe pile of blanks carried thereon, the

said vapplication No.

frame has two posts, 8, 8, erected rigidly.- Thesep'osts areconnected at their upper end i by a cross-headjt), upon the upper side of which there is mounted a downwardly open cylinder, 10, having a piston, v11,.With its stem, 12, rejecting out at the lower end of the cylin er and through a guide bearing, 13, rigid with the cross-head. the piston is hollow and opens above the piston into the cavity of the cylinder. At

the lower end and below the cross-head it has sleeved the horizontal members of T fittings,

15, whose vertical members are connected by pipe sections,16, 16, with suction mouths, i

17, 17, mounted'at the lower end of said pipe sections and designed and adapted for grasping b suction thetblanks' upon whose surface t ey may press for lifting them from the.

pile. Af shaft, 18, is`journaledon the frame x yfor affording operating powery connections with the' various mechanisms thereon, has

rigid with it a'disk, 19, which has a segmental slot, 19a, in which are mounted and adjust- -ably securedtwo abutments, 19", .19", bein y ,prreferablv roll-carryi as appears 'in the drawing the following brief and -extends at proper position up alongside .one of the standards, 8, and isconiiected into the to vof 4the cylinder10, for producing suctient erein above the, iston to cause the latte 1' tofbe Withdrawninto the cylinder.` It

.roov

will he neen 'that the suine oonneotion :lillordn etuninninmition with the suction n'ninithu or Stiel: l?, l?, lhrougn the hollow utoni, l2,

. :it the lower side and nein.' one end of the t has infor erin., 22, extending alongside the dink, l. in position to be encountered by tho prop ng nbutiinenln, 10". The vulve, 2l, is Aheld nornuilly bv spring, 23, open for nation 'haunt th these ebntinents passes oft the lever nrni, und

us by the iidiustniont of the two :'ibutment's in the slot the time ol shifting Suid Valve :nid the length oi time it is held in position for venting the pipes wi l be regulated.

lll/Then the ml re, 2 l, in position to out oil ooinuiunionl ion with the souroeo" raireiied nir and to open communication el' the pipe, 2t), with the atmosphere, the piston, 1l, and the pints oonueoted with its Stem descend by gravity until the sue-tion inouthu, l?, rest upon the upper surface oi the upper blank of tl1epile,\-'Jliioh may be either upon the pinten, 2, or rest upon the dogs, 7. The nnu'ginn ol' the suction months are adapted 'for nniking airtight Contact with n smooth surface, suoli :is thesnrlaoeo'l the olainlrs, und the weight ol the device including the piston :nid the ,pipe connections there-.trom to the n'iouths is sutlioienl, to insure such nir-tight contact. lin addition to the two suction months 'oarried on the cross pipes, 14, lll, the piston, l l, carries at point intermediate said two mouths and preferably in the vertical lorennd-a'ft plane el the axis of the piston o presser, 24,. which protrndes normally below the .horizontal plane of the lower margins of the mouths, i7, so that it enooiinten` the npper sullo-oe of a blank on the top ol'V the pile before he encounter ol the mouths there with. This presser is mounted as n.` plunger in the extension, F23, ol the stem, l2, below the cross pipes, l5, and is held yfieldlngly protruded, ne described, by a. spring?, Z5, birch ol` it in the tubular extension ol the piston stern. When the Valve, 2l, is set for cutting oliE oommunioationwith the sonre of raretied oir and for admitting ritinosph'eridnir'to the pipe, 20", the piston, 1,1, and all parts, connected there with descend. by gravity until' the presser, 24, and the suction mouths, 17, are stopped by contant with the upper ble-nk of the pile on inline, l,

tho pla" oounir, L; tho blnnhY lirfl lun t ,l wi tho tnlll't doutfoluliug tlouit-llz-l brin oit-nl to ororroino tht` disinnwol' th:- priufu '25, bueh oi tho pitufsrr :and run-:o tho uur ion months` to oonio into nir-tl1ht voulut nitll illty Slll'ltlttri 0l lilo lilnnli The punition ol' thonlnnnientn,ltl".ontlu\di 1l\, lll. :nul tho intorvul between thorn :dongv tht Alot. lli", will ln tfetlolllnlirl :intl zlllll'intr'tl so llint :illto tho rullo, ill, in not, :is drsfrilud, lor :nllni ting ntiumphorio nir to tl n orlindor lo por init the pistou to lull, it olulll bo hold iur-,lull ndjnsstniout loner enough to poi-init tht :lotion by gravity :ihovo denrrirud, :unl thon tho huit abutment, ttl, hziiiniij run oll` thound ol' tho lover erin. 32, the vulve, El, will bo rorrrrwd by the spring, 12%. to the pont ion ut n'hioh 1ninonphoric oonnuunioution with the pipo. 1o. wil bo closed :1nd oonnnnnlrution with tho source oll ruroiiod nir oponotl. 'this minuti; two ell'eots: First. nurlion opt'rntinfg through the lsuotion mouthn, l?, will hold tht` blu-uli` lirln to smid inonihs; serondlr. tlu pinton, l1, willbo iorrod upward by atmospheric pieouuro in oppoei ion to tho roduvt d :nr tt-nsion in the ovlindor uliotn tho piston, und thtl onljirrx lifting` device Carried by tho piston will be moved upwnird. The blnnk onnngud b y the .motion mouths or Subborn, lT, nt opposite. nidos of the prosnor will bo lil'ted :it two opposite edges buty will be hold down ut` tho intorxuodinte pointl while thel prostzor, il, rests upon it to suoli extent :il: the tonuion. ol tho spring'.y 24, muy be :idetputto to bou or bond tho lilunlc. Such bowiniy or bondingy ol tho blltnle will operato to dot'noh it i'ronl ilu` no.\;t stuiver-ding blank il the lutter for :in r rr-:ison tllnd to utlln-ro to it or be lil'ttd with it..

inthe ruf-.e oi' inotnl blnnlu whirh hure boon rui out, with the sinne die, thonx is tro quontl)y n` slight lonthoi or bnr ut` thoI edges, rnnsinuj tlu blzinlis to be ongngggcd with ourh othorln' tho ntrrlooliiin: ol tho siniilnr burn, but thtJ rnrvntnre ol thobluinlis :ibont thev liin` :u whi'h thel presser bonis upon tlioln :n1fos tho lowrr lllunl. to slidt slightly upon tho npptr one :it tho two ends :1nd thoI intorlooltml burn ar(` thun disengaged; also, when udhosion happens, bjr reason ol' oil or other llo nid between tlr blanks, thofliirht \lidin;v (tanned l, the honing` oll tho bh1nl v tenth: to breuk the udheslon, ln both minos. tlnflowor blank reauting' troni thel bonding to wllirh ii has been `mbinrtod by adhesion to tlw upper blank strulg'htons itsoll' bark onto the pilo while the top blank ren'niins engaged by tho sut-liters :it tho end and lumf'eddown in tho Tnidtllty by' tlupresser. This springing, :iotion beurten the tiret blnnli und lthe noxt sur.- ceeding blank will happen upon the ro'rv first liftii'lg action causing tho bowino' unil Said lifting notion mmtinninr;- :is tho piston "rises, the upper bleak fully detached from `,the one next. below is carried up fremy the pile aal the piston continues its ascentfY When this device is used for the pi) ose S'ff supplying blanks to a machine wh1ch 1s to aact'upon them in subsequent processes, either as.l 'a` part of such machine or as a part of 'a feedingmachine, a suitable elementis ro- 'vided' to enter between the ydetached b ank andthe pile andengage'it'by its rear edge for *Such-an element is represented inthe drawfings by the parallel feed bars, 25, 25, having projecting upward from the bars. In the drawings these fee( bars are shown without .operating connections, 4but it may be under- .'stoodthat whether as 'a part ofthe feeding. e *machine shown or as a vpart of the machine y the feeding Jma ,which *isto' be served "j chine, they are connected with means for reciprocating .them synchronously with lthe ,actionof the valve, 21,which causes the operfatinof the liftingl devices by means of the as piston, 1 1.; and that these reciprocating means are timed so as to thrust the bars, 25, back above the top. of the pile of blanksi fitliatiis, above the r edge of the forward post, 6, against whic .3,0

the pile 'of blanks is `stopped and by which itis gaged-after the ,lifting action has roceeded far enough to lank from the'pile at the {f j'e'iids and lifts'it ig'h enough-for the bars, 25, tofenter under it' atthe'ends above `the re- Sfinainder of the ile. "If the bars enter under ,the ends ofthe lank before it is lifted more F han barely enough to permit them to thus nter'," th'ratchet dogs, 26, colliding with the i io 'oymward and will slide under the blank and spring" up to engage behind its rearl edge jgready to, feedV itf onward upon thev reverse movement of` the feed bars. To permit the blanky to lie flat ,upon the-bars andln that cdit'ionV to be fed forward thereby; the suolrersor"suction mouths, 17,' must be gre vfrom 'the blank at the ends of the'latla t at it 'may straighten ,out on,.the feed (bars 5'; and in any case, it will be best toI f5; -ireleise it rather than to ,detach it by edgewise ,movement fromthe' suckerl mouths. For such release, 'there' is provided in the tubular Y piston l stem' 4which connects the source of frarefied air with the sucker mouths, the valve,

. 55127, which is'held normally in, ositionafford-y A-l`v'shift itto pesition for venting ,and releasing -orward edge of the blank will be forcedv the sucker mouths there is mounted on-a hanger arm, 29, which is attached to the cross head, 9, a lever', 30, connected by a link, 31, with a lever arm, 32, of a rock shaft, .33, which is yjournaled at the lower end of the same hanger arm, said lrock shaft having a lever arm, 34, which protrudes downward in position to be encountered by one of the bars, 25, during the rearward' stroke of said bar for lassing under the lifted end of the` blank.

he parts are relativel proportioned and adf -justed so that this col ision occurs and operates the rock shaft for causing thedever arm, 30, to open the valve, 27, at the limit of the rearward stroke of the reciprocating bars, 25,

when the dogs, 26, have passed beyond the rear edge .of the blank so that' they may engage it.

reacts into its normal straight form,'lying The sucker bein released .from the blank by the opening of t e valve, the blank across ,the bars, 25, in front ofthe ratchetl dogs, and is carried out by `thenext forward movement of saidbars.

I claim 1. In a machine for the purpose indicated,

a support for a pile of blanks; means pressing upon the exposed blank of the pile between two opposite edges thereof to restrain such blank from bein lifted devices for engaging the exposed su ac'e of said blank at opposite sldes of said 'restraining means; means for moving the engaging devices for lifting said blank at the engaged parts,;and means entering between the lifted parts of the said blank Iand the next blank of' the pile for maintaining separation between them.

2. In a machine .for the purpose indicated,

' asupport forthe blanks; a suction device for lifting the opposite lateral edges of the blank; meansfor restraining the blank from being lifted between said edges, and blank-feeding means entering underthe lifted lateral edges ofthe blankat the forward edge adapted to f angagle the blank for feeding at the rea-1'` edge.

3. n amachine fbr the purpose indicated,

in combination'with a supportcfor va pile of blanks, pneumatic devices'comprising two 'loc suckers -for engaging the exposed blank of the pileat' two se arated ositions'; 'means for liftmg said suc ers to letach the bl'ank from the pile a deviceentering under the de tached blank forjseparating it from thepile;

by said separating device.

blanks, a device adapted tobe yadvanced 4. Ina machine 'forthepurpose indicated., m' combination with a support fora pile of VIS la valve for venting both the suckers, andI connections for -opening the valvev operated against the exposed blank of the vpile comprising an elastically" yielding presserand two suckers at opposite sides of the'presser,

the presser being protruded relatively to the suckers so as te encounterthe blank before4 i al , leiter; lneans lor advancing ille entire dei ee or slicli enccnnier and for reii'aciing il; ailier ille silekers eiioonnirr die blanl-.

in a lliaellino 'for ille Vpurpose ii'ldiialled, in combination wi'ill a suilpori` i'or a pile oll blanks, a device comprising an' elasiically yielding presser and a sucker adapted io oilcoil'ilizer ivlie surface of tbe exposed blank oi" ille pile; a cylinder baring cominlilliclliioil ivii'll a, source of rale'lied iii' lor silrlion; a piston in ille cylinder oper lrely connected iviill said device for lnl'ivin connie o'i presser an blank niovenleni oi i: piston in one reciion and for reiiraciing in iipon ille rever-swy inoveilieni el" iii e piston, 'ille pisioll sii-ni con 1 laiiel' i'or eilillix 'stliiuting a duct for con'nlninicaiion oi "die rareiied air pasiiilie piston willi ille sucker; means for culling oil libe rareiied air and venting ille passage ivo ille cylinder io `perillii' ille pist-on to inove in ille direciaioll 'lor siicll encounter and for re-opening snob connnuni cation io reiraei; ille piston allier ille sucker encounters the blank.

6. in a inael'iine for ilie purpose indicated, in combination 'with a support loi' a pile of blanks, a cylinder having coinniunieainion with a source of rarelied air for suction; a valve which controls suel'l coinlniinicaiil'in; a piston in the cylinder adapted io be rebracied ivliereinto upon opening connnunicaiion wiiill the rarefied air; a device eonnecicd wiill ille piston and; normally operating by gravir;Y lo withdraw ille pisilon, said device eonlprisineY an elasi/icallv yielding presser and a sucker bien are advanced by graviiy against ille exposed Llank oi' ille pile, ille presser beingl protrude@ relatively i'o ille sucker izo encounter the blank iirsi, elle pislzon stein constitnting a duct by which iille sucker coinniunicaries past'I ille piston wi'iill ille cylinder eavity; means for periodically operatingille valve to cut oli ilie rarefied air and re-opening the saine after ille piston moves outward in the cylinder and libe sucker llas enei'iuntered the blank.

7 ln a inaclline for the purpose indicativi, in combination vwith a support` lor blanks, adapted to be advanced .in tlle direction ol' ille thickness of tlie blanks; a device adapted to be moved to encon'ntier lille surface oi5 ille exposed blank comprising an elasiiically vyielding presser and a sucker, said device con'ii'irising` a piston and a cylinder in irllieli it operaties, ille piston stein beingr llolloiv and allording connnunicailion l'roln ille cylinder beyond ille piston Witb talle sucker, 'ille cylinder having communication iviill a source ol rareiied air, tle presser being protruded relatively io the sucker for .encountering ille blank before tlie'lai'iler; a valve vlfllicll controls ille rare'riei'l air communication of ille cylinder, and nieans for operating ii period- (Midi ii'fally iol` opening' suell eolllillnlliclii'ioll and lor renting ille cylinder.

. V.ln :l nlaclline lol' ille pilrposli indicated,

ill colllbiniltii'lil niili a support lor blanks.

adapted io be advanced ill i'lll` direeiion oti ille tllickiliss ol' ibo blanks; a, device adapted io be advanced against ille exposed blank eoillprising,` all elasii lilly yieldingrv presser and iwosueliers at opposite sides ol ille presser, ille presser being; pl'oirlided relatively io ille sln'fkers io encounter ille blank' ill advance ol' ille laiier; a cylinder bovino; loillnluiliciiiloll \\iill a source ol l'llrelied iiil': a i'zllye eolltrollint;y snell minllluliioaiion; a piston ill ille cyl inde"7 illel pision stein being .lollon' and vonv nreied wiill said device and illl'oi'diliii` conlillnn: lation l'rolll ille i'yliiidel' beyond tlli` pision to ille suckers, said colllnliiilililtion llininjir :l venty io iln` aiulospllere, :llld a valve wliicli controls said Yeni, said Valve beinev norlllally closedy alld llleans l'ol` opening' it alii er ille piston retracted ill ille cylinder.

il. ln a niaellille l'or ille purpose llldici'iied` in conlbina'iion willi ll snpporiy 'ol a pile ol biai'iks? a device lor ifepilraiiilil;Y ille top blank l`rolll ille pile comprising;l an elasiically yield inn` presser and iffo sui-,kers at `opposite sides of ille presser; a piston t'i'lllnected \\'iill said device; a cylinder into nllicll ille piston lllayY be reirflctod7 said cylinder llayilici eolllninllication willi ay source ol larelied air l'or so 'rei'raeiing' iil.i'lle suckers being also connected wiill said source: il valve controlling said eonlinuuieaiion and lor venting ille cylinder nick of ille pisioll: lneans lor operating said Valvey to ent oill eoinilluilieaiion uitll i'lli` rarel'ied air and open ille vent to perillit ille pision to niovooiliwiil in ille cylinder and lor reversing ille `valve to reiraciy ille piston; a'

veilty ill ille collillluilicillioil ol' illey rarelied air willi ille suckers, and a valve lor collirob ling` said veilt adapted io be normally closed, and lileans lor opening; said'limit-inlined valve ilo veilt ille sui-kers wllen ille lirst, valve is opened l'or coillnluilieation ol' ille cylinder wiili t'lle rarel'ied air` it). ln a nlaclline i'or ille purpose indicllied, in (,iolllbinai'loll ii'iizll ay support4v for a pile of blanks; two suckers adapted to eilg'aire ille surl'aee ol ille exposed blank; a tubular support;` for carrying said suckers llaviller coininunicaiiion Wiill ille source olI rareiied air lior operatingl ille siickers; an elastically yielding sucker carried by said suckersupport between ilie two suckers and proilruded relatively io ille suckers io enrounier ille blank before ille latter; nleails for ad vancing die suckers and presser againstl ille exposed blank and for reilraciwincT ilieinj. a valve for controllingr ille eoiniliunielliion of rareiied airnf'iili. ille suckers and nl lans lor operating ii: to open. sucll'conilnnnieaiion ivllileilie suckers are.V pressed against ille lOO s535910 v y 5 t blank; .a yalve for venting the sckers and l Vices to relieve the suction and release the means for opening it after the suckers are rel 'blank vand connectionsy for operating said tracted for lifting the blank. valve operated by said 'separating devices.

- 4 -.51; In a machine forv the `iurpose indi- In testimony whereof, I have hereunto set 15 5 cated, in @ombinationjwith a sup ort for a my hand at Chicago, Illinois7 this 27th (lay of pile'of blanks, neumatiodevices 'or engag- October, A. D., 190. l

111g the expose' blank of the pile by suction;

means for `lifting said device to detachv said blank-from 'the pile; means entering under Witnesses;

io'the 'detached blank to separate it lfrom the l CHAs. S. BURTON` pile'; a valvefor -ventingy the pneumatic le-'l HOMER KRAFT.

EML TYDEN. 

